BRIEF REPORT: INVESTIGATION OF THE PREVALENCE OF CIRCLE OF WILLIS VARIATIONS USING MAGNETIC RESONANCE ANGIOGRAPHY WITHOUT CONTRAST AGENT

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AALAEE ABDOLRASOUL; ALIPOUR ABBAS; BARZIN MARYAM; ASDOLLAHZADEH KENARI SOHRAB

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Paper Information

Journal: JOURNAL OF MAZANDARAN UNIVERSITY OF MEDICAL SCIENCES Year:2015 | Volume:25 | Issue:130 Page(s): 147-152

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Title

BRIEF REPORT: INVESTIGATION OF THE PREVALENCE OF CIRCLE OF WILLIS VARIATIONS USING MAGNETIC RESONANCE ANGIOGRAPHY WITHOUT CONTRAST AGENT

Author(s)

AALAEE ABDOLRASOUL | ALIPOUR ABBAS | BARZIN MARYAM | ASDOLLAHZADEH KENARI SOHRAB | Issue Writer Certificate

Keywords

CIRCLE OF WILLISQ3

ANATOMICAL VARIATIONSQ2

MRAQ2

Abstract

Background and purpose: The complexity of anatomical variation of Willis circle (CW) has made it susceptible to variation. The goal of this study was to determine the prevalence of the CW variations using magnetic resonance angiography (MRA) without contrast agent in patients attending Sari Imam Khomeini Hospital.Materials and methods: In a cross-sectional study, 200 subjects referring for MRA were analyzed. Variables included hypoplasia, agenesis, stenosis, aneurysm, dolichoectasia, fenestration and duplication. Logistic regression model was applied to estimate the association between variation states in CW and other variables.Results: The most common variation was hypoplasia in left and right posterior communicating arteries (n=118 (59.3%) and n=107 (54%), respectively). Stenosis and dolichoectasia were more prevalent in anterior cerebral artery and basilar artery, respectively. Among the participants 90 (45%) were diagnosed with stenosis and 31 (15.5%) were reported to have dolichoectasia.Conclusion: Typical circles were seen only in 28 (14%) individuals and the rest had other variations. Therefore, MRA could be beneficial for diagnosis, treatment and prognosis.

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APA: Copy

AALAEE, ABDOLRASOUL, ALIPOUR, ABBAS, BARZIN, MARYAM, & ASDOLLAHZADEH KENARI, SOHRAB. (2015). BRIEF REPORT: INVESTIGATION OF THE PREVALENCE OF CIRCLE OF WILLIS VARIATIONS USING MAGNETIC RESONANCE ANGIOGRAPHY WITHOUT CONTRAST AGENT. JOURNAL OF MAZANDARAN UNIVERSITY OF MEDICAL SCIENCES, 25(130), 147-152. SID. https://sid.ir/paper/45220/en

Vancouver: Copy

AALAEE ABDOLRASOUL, ALIPOUR ABBAS, BARZIN MARYAM, ASDOLLAHZADEH KENARI SOHRAB. BRIEF REPORT: INVESTIGATION OF THE PREVALENCE OF CIRCLE OF WILLIS VARIATIONS USING MAGNETIC RESONANCE ANGIOGRAPHY WITHOUT CONTRAST AGENT. JOURNAL OF MAZANDARAN UNIVERSITY OF MEDICAL SCIENCES[Internet]. 2015;25(130):147-152. Available from: https://sid.ir/paper/45220/en

IEEE: Copy

ABDOLRASOUL AALAEE, ABBAS ALIPOUR, MARYAM BARZIN, and SOHRAB ASDOLLAHZADEH KENARI, “BRIEF REPORT: INVESTIGATION OF THE PREVALENCE OF CIRCLE OF WILLIS VARIATIONS USING MAGNETIC RESONANCE ANGIOGRAPHY WITHOUT CONTRAST AGENT,” JOURNAL OF MAZANDARAN UNIVERSITY OF MEDICAL SCIENCES, vol. 25, no. 130, pp. 147–152, 2015, [Online]. Available: https://sid.ir/paper/45220/en

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